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2 Matched vintage Sylvania 12AU7A/ECC82,Amplitrex strong tested & auditioned., US $56 – Picture 0
2 Matched vintage Sylvania 12AU7A/ECC82,Amplitrex strong tested & auditioned., US $56 – Picture 0

2 Matched Vintage Sylvania 12au7a/ecc82,amplitrex Strong Tested & Auditioned.

US $56

  • Sunny southeast, United States
  • Jun 10th
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 Hello there,up for your consideration a pair(2) of vintage Sylvania 12AU7/ECC82 tubes,made for the Conn co., all this tubes are long gray plates(17mm.) top round getter tubes.American made on the late 1959-early 1960,not only they are the same tube design for the 4 of them,but they are closely matched where it matters,within 1% from each other(GM),the lettering is faded a bit on the tubes some more than others,there's no boxes for them but they will be very well packaged for shipping.  All tubes are tested for emissions/current plate(IP)and/or mutual conductance(GM) by a computer controlled Amplitrex AT-1000,a laboratory grade tube tester with specialized results(0.1% acurracy),also,and all tubes are auditioned,either on the tester or on my limited edition Devoe HiFi tube amp,while tapping on the tubes for microphonics,hums or any kind of undesirable sounds,and this tubes are dead quiet and ready to be plug in!,as always,all tubes are 100% guaranteed!,if you have any questions,please don't hesitate ask away,thank you.   This tubes were tested with real full voltages,@ 250 volts at the plate for shorts,gas,emision,mutual conductance(GM) and heater to cathode leakage(where applicable),the Industry standard for 12AU7 is 2.20 m.A./2200 micromhos (2.20 x 1000 = micromhos) per triode side,here're the results:    2.40m.a.(GM) & 2.20m.a.(GM)  2.40m.a.(GM) & 2.20m.a.(GM)                                             Return Policy: Your satisfaction is very important to us.We stand behind 100% on every tube we sell, All tubes are guaranteed!,if not satisfied with any of the tubes in question,please communicate with us first and then you will return the bad tube(s) with their original sticker label(s) from the sale back to us at your expense,no exceptions and I'll refund your money fully or partially (except shipping)right away,no questions asked!.,look on our feedback,buy with confidence,thank you.  :)

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